MOTION AND
MOVEMENT
WHAT IS THE MOVEMENT?
Movement is the change of position of an object in
relation to a fixed point in space.
 In physics, motion is the change of location or
position of an object with respect to time.

MOTION CHARACTERISTICS
The main characteristics are the following ones:
position, trajectory, distance travelled,
displacement, time taken, speed and
acceleration.
 Position X is precisely where an object is located.
 Trajectory is the path that a moving object follows
through space. It can be rectilinear, circular,
parabolic etc . Ex: a ball thrown into a basket is
parabolic or the hands of a watch is circular.

The distance travelled (E) is the length of the
trajectory made by the moving object from the initial
position to the final position.
 The displacement (D) is the distance, measured in
straight line, between the initial position(Xi) and the
final position (Xf). D=Xf-Xi


Speed is the distance travelled per unit of time.
Average speed (Vm) is calculated dividing the distance
travelled by the time spent.
Vm= distance travelled (e)
time spent
The unit used to measure the speed in the SI is metres per
second. (m/s)

UNIFORM LINEAR MOTION
A body has a uniform linear motion if the trajectory is
a straight line and the speed is constant.
E= v x t
Distance
travelled
Speed-time graph
time
Distance-time graph
speed
UNIFORMLY VARIED MOTION

The speed varies in a uniform way. Ex: A train
starting off o stopping.
ACTIVITY 1
An athlete can run long distances at 4 metres
per second. How far can she run in?
a) 50 seconds
b) 3 minutes
c) 1 hour
d) 2 hours and a half
ACTIVITY 2
Andrew rows at an average speed of 2 metres per
second.
a)How long does it take him to
row:
• 70 m
• 800 m
• 1 km and a half
b) How far can Andrew row in:
• 12 seconds
• 3 minutes and a half
• 4 hours
ACTIVITY 3
A snail moves 5 m in 2 hours. If it moves at the
same speed all the time, calculate:
a)The time it takes to move 20 m
b)The distance it would move in 3 hours and a half
c) The time it takes to move 1 m
d)The distance it moves in 15 minutes
ACTIVITY 4
John can type 960 words in 20 minutes.
Calculate his typing speed in:
a) Words per minute
b) Words per hour
ACTIVITY 6
The graph represents data of positions and times of the
movement of an object.
s (m)
A. Is it an uniform motion or an
accelerated motion? Justify your
answer.
B. The position of the object at 2
seconds from when the movement
started. The position of the object
at 6 seconds.
C. Speed at the interval 2-6 seconds.
D. The position of the object at 4
seconds from when the movement
started. The position of the object
at 10 seconds.
E. Speed at the interval 4-10
t (s)
seconds.
F. How has the trajectory been?
ACTIVITY 7
Given the following values tables, answer the following questions.
Values table A
Values table B
s (m)
t (s)
s (m)
t (s)
2
0
0
0
4,5
1
2
1
7
2
5
2
9,5
3
9
3
12
4
14
4
14,5
5
20
5
17
6
27
6
19,5
7
35
7
22
8
44
8
24,5
9
54
9
27
10
65
10
A. Draw the graph s/t of each
movement.
B. Calculate the average speed in
the first five seconds for each
values table.
C. Calculate the average speed in
the time elapsed from the
second five to the second ten
for each values table.
D. Indicate the type of movement
represented in each graph.